Detwiler was skipped in the rotation previously due to back spasms suffered in his last start. 

"I thought I was ready to go," Heisey told the Cincinnati Enquirer Saturday. "I've never hurt my hamstring before. It's definitely tough to reinjure it, but at the same time I'm learning and hopefully I can prevent it in the future."

Heisey thinks he will be able to come off the disabled list soon, but knows that it is not something that will happen any day. He still needs to go out on another rehab assignment, most likely.

"It won't be long," Heisey said, "but it won't be in the next couple of days, which is not soon enough for me."

"People seem to be under the impression that I’ll be back in the middle of July and that’s a complete lie," Ludwick said. "I can't even resume baseball activities until July 3, so it's at least the middle of August. I can't even throw a baseball or swing a bat until July. I've got a whole lot of stuff to do. I've got to get in baseball shape, as they call it. You take three, four months from throwing a baseball, it's going to take a while to get your arm back in shape."

Ludwick has been out since opening day, and he has begun doing rehabilitation work, but is not close to returning. Judging by his words, he should not be expected back until August at the earliest. 

"It was a little bit scary for me," Reyes said Saturday of his first time running. "But pain free. I just started running a little bit. I'm very happy the way that I performed yesterday; better than I expected. As I said, I'm going to continue to work the hardest I can to be on the field as soon as possible."

Reyes had been limited to soft toss in the batting cage and catch, but could take full batting practice and resume baseball activities in the next week. He says he will know he can play when he is able to round the bases and field his position.

"You can take a ground ball right in front of you and you feel good," Reyes said. "You can hit batting practice and feel good. When it comes to running and jumping around in the real game, it's going to be a different story."

Reyes is still not sure when he will be able to leave for a rehab assignment, though it looks like he could be back sometime in June, rather than at the All-Star break. 

"He just started doing a little bit of swinging," manager John Gibbons told MLB.com Saturday. "We don't think he's too far off, but still you got to be cautious with that."

Davis has been taking dry swings off a tee and participating in minor baseball activities, and is expected to need a few game appearances in the minors before being activated from the disabled list. 

Morales has topped 80 pitches in his rehab stint, and could be used as a spot starter when he returns, though he is likely to be used out of the bullpen initially. Morales has a 3.18 ERA in 17 innings during his rehab stint.  

Manager Ron Roenicke told the Milwaukee Journal-Sentinel Saturday that he is not ready to name a starter for Tuesday's game against the Twins, due to Jim Henderson's hamstring injury.

"Now I'm thinking about something a little bit different," Roenicke said. "I'm rearranging some guys."

With the bullpen possibly short for the next few days, Roenicke may have to turn to Figaro as the long reliever, which would likely cost him a chance at a start. At this point, no decision has been made.